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Easy Adding
Easy Subtracting
With Carrying (+)
With Borrowing (-)
Surprise
100

5 + 7 =

12

100

50 - 25 =

25

100

53 + 29 = 

82

100

87 - 65 =

22

100

9 x 5 = 

45

200

40 + 60 =

100

200

15 - 9 = 

6

200

27 + 46 = 

73

200

88 - 56 = 

32

200

9 x 9 =

81

300

25 + 52 =

77

300

278 - 54 = 

224

300

996 + 978 =

1974

300

926 - 658 = 

268

300

7 x 0 = 

0

400

198 + 56 = 

254

400

566 - 322 = 

244

400

597 + 938 = 

1535

400

753 - 378 = 

375

400

8 x 6 =

48

500

764 + 142 = 

906

500

972 - 531 = 

441

500

5978 + 2338 = 

8316

500
7050 - 5968 = 

1082

500

8 x 9 = 

72